DEVICE FOR REMOVING NITROGEN
PURPOSE:To provide a denitrification device having high speeds as a whole by positively accelerating reduction reaction from nitrogen in a nitric acid to nitrogen in a nitrous acid by means of bacteria and rapidly reducing the nitrogen in a nitrous acid state produced to nitrogen gas by means of hyd...
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creator | TSUNODA FUDEKO AKEGA HARUKI |
description | PURPOSE:To provide a denitrification device having high speeds as a whole by positively accelerating reduction reaction from nitrogen in a nitric acid to nitrogen in a nitrous acid by means of bacteria and rapidly reducing the nitrogen in a nitrous acid state produced to nitrogen gas by means of hydrogenation catalyst. CONSTITUTION:In a denitrification device for raw water containing nitrogen in a nitric acid state, nitrogen in a nitrous acid state is produced positively by means of a biological denitrification means, and a chemical denitrification means including hydrogenation catalyst for reducing nitrogen in a nitrous acid state to nitrogen is provided in a following stage. |
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CONSTITUTION:In a denitrification device for raw water containing nitrogen in a nitric acid state, nitrogen in a nitrous acid state is produced positively by means of a biological denitrification means, and a chemical denitrification means including hydrogenation catalyst for reducing nitrogen in a nitrous acid state to nitrogen is provided in a following stage.</description><edition>5</edition><language>eng</language><subject>CHEMICAL OR PHYSICAL PROCESSES, e.g. CATALYSIS OR COLLOIDCHEMISTRY ; CHEMISTRY ; METALLURGY ; PERFORMING OPERATIONS ; PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL ; THEIR RELEVANT APPARATUS ; TRANSPORTING ; TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE</subject><creationdate>1994</creationdate><oa>free_for_read</oa><woscitedreferencessubscribed>false</woscitedreferencessubscribed></display><links><openurl>$$Topenurl_article</openurl><openurlfulltext>$$Topenurlfull_article</openurlfulltext><thumbnail>$$Tsyndetics_thumb_exl</thumbnail><linktohtml>$$Uhttps://worldwide.espacenet.com/publicationDetails/biblio?FT=D&date=19940603&DB=EPODOC&CC=JP&NR=H06154787A$$EHTML$$P50$$Gepo$$Hfree_for_read</linktohtml><link.rule.ids>230,308,780,885,25562,76317</link.rule.ids><linktorsrc>$$Uhttps://worldwide.espacenet.com/publicationDetails/biblio?FT=D&date=19940603&DB=EPODOC&CC=JP&NR=H06154787A$$EView_record_in_European_Patent_Office$$FView_record_in_$$GEuropean_Patent_Office$$Hfree_for_read</linktorsrc></links><search><creatorcontrib>TSUNODA FUDEKO</creatorcontrib><creatorcontrib>AKEGA HARUKI</creatorcontrib><title>DEVICE FOR REMOVING NITROGEN</title><description>PURPOSE:To provide a denitrification device having high speeds as a whole by positively accelerating reduction reaction from nitrogen in a nitric acid to nitrogen in a nitrous acid by means of bacteria and rapidly reducing the nitrogen in a nitrous acid state produced to nitrogen gas by means of hydrogenation catalyst. CONSTITUTION:In a denitrification device for raw water containing nitrogen in a nitric acid state, nitrogen in a nitrous acid state is produced positively by means of a biological denitrification means, and a chemical denitrification means including hydrogenation catalyst for reducing nitrogen in a nitrous acid state to nitrogen is provided in a following stage.</description><subject>CHEMICAL OR PHYSICAL PROCESSES, e.g. CATALYSIS OR COLLOIDCHEMISTRY</subject><subject>CHEMISTRY</subject><subject>METALLURGY</subject><subject>PERFORMING OPERATIONS</subject><subject>PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL</subject><subject>THEIR RELEVANT APPARATUS</subject><subject>TRANSPORTING</subject><subject>TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE</subject><fulltext>true</fulltext><rsrctype>patent</rsrctype><creationdate>1994</creationdate><recordtype>patent</recordtype><sourceid>EVB</sourceid><recordid>eNrjZJBxcQ3zdHZVcPMPUghy9fUP8_RzV_DzDAnyd3f142FgTUvMKU7lhdLcDIpuriHOHrqpBfnxqcUFicmpeakl8V4BHgZmhqYm5hbmjsbEqAEAdx8hFQ</recordid><startdate>19940603</startdate><enddate>19940603</enddate><creator>TSUNODA FUDEKO</creator><creator>AKEGA HARUKI</creator><scope>EVB</scope></search><sort><creationdate>19940603</creationdate><title>DEVICE FOR REMOVING NITROGEN</title><author>TSUNODA FUDEKO ; AKEGA HARUKI</author></sort><facets><frbrtype>5</frbrtype><frbrgroupid>cdi_FETCH-epo_espacenet_JPH06154787A3</frbrgroupid><rsrctype>patents</rsrctype><prefilter>patents</prefilter><language>eng</language><creationdate>1994</creationdate><topic>CHEMICAL OR PHYSICAL PROCESSES, e.g. CATALYSIS OR COLLOIDCHEMISTRY</topic><topic>CHEMISTRY</topic><topic>METALLURGY</topic><topic>PERFORMING OPERATIONS</topic><topic>PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL</topic><topic>THEIR RELEVANT APPARATUS</topic><topic>TRANSPORTING</topic><topic>TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE</topic><toplevel>online_resources</toplevel><creatorcontrib>TSUNODA FUDEKO</creatorcontrib><creatorcontrib>AKEGA HARUKI</creatorcontrib><collection>esp@cenet</collection></facets><delivery><delcategory>Remote Search Resource</delcategory><fulltext>fulltext_linktorsrc</fulltext></delivery><addata><au>TSUNODA FUDEKO</au><au>AKEGA HARUKI</au><format>patent</format><genre>patent</genre><ristype>GEN</ristype><title>DEVICE FOR REMOVING NITROGEN</title><date>1994-06-03</date><risdate>1994</risdate><abstract>PURPOSE:To provide a denitrification device having high speeds as a whole by positively accelerating reduction reaction from nitrogen in a nitric acid to nitrogen in a nitrous acid by means of bacteria and rapidly reducing the nitrogen in a nitrous acid state produced to nitrogen gas by means of hydrogenation catalyst. CONSTITUTION:In a denitrification device for raw water containing nitrogen in a nitric acid state, nitrogen in a nitrous acid state is produced positively by means of a biological denitrification means, and a chemical denitrification means including hydrogenation catalyst for reducing nitrogen in a nitrous acid state to nitrogen is provided in a following stage.</abstract><edition>5</edition><oa>free_for_read</oa></addata></record> |
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subjects | CHEMICAL OR PHYSICAL PROCESSES, e.g. CATALYSIS OR COLLOIDCHEMISTRY CHEMISTRY METALLURGY PERFORMING OPERATIONS PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL THEIR RELEVANT APPARATUS TRANSPORTING TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE |
title | DEVICE FOR REMOVING NITROGEN |
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